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Dell Optiplex 755 Desktop PC - Intel Core 2 Quad Q8200 2.33GHz, 6GB Memory, 2TB HDD, Quadro NVS290 VC Dual DVI, Windows 7 Professional 64-bit (Off-Lease) - RB-DELLDT00310103 at TigerDirect.com
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Amazon.com: Genuine Dell GM819 JR271 Y255C GM816 Optiplex 755 Small Mini Tower SMT Socket755 Intel Logic Main System Board Motherboard Compatible Part Numbers: GM819, JR271, Y255C, GM816 : Electronics
Driver downloads for PCI serial port & PCI simple communication controller - Page 4 - Dell Community
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